Add generateAppForLink function in chrome.management

chrome/browser/extensions/bookmark_app_helper.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/bookmark_app_helper.h"
 
 #include <cctype>
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 165 matching lines @@
   registrar_.Add(this,
                  chrome::NOTIFICATION_CRX_INSTALLER_DONE,
                  content::Source<CrxInstaller>(crx_installer_.get()));
 
   registrar_.Add(this,
                  chrome::NOTIFICATION_EXTENSION_INSTALL_ERROR,
                  content::Source<CrxInstaller>(crx_installer_.get()));
 
   crx_installer_->set_error_on_unsupported_requirements(true);
 
+  if (!contents)
+    return;
+
   // Add urls from the WebApplicationInfo.
   std::vector<GURL> web_app_info_icon_urls;
   for (std::vector<WebApplicationInfo::IconInfo>::const_iterator it =
            web_app_info_.icons.begin();
        it != web_app_info_.icons.end();
        ++it) {
     if (it->url.is_valid())
       web_app_info_icon_urls.push_back(it->url);
   }
 
   favicon_downloader_.reset(
       new FaviconDownloader(contents,
                             web_app_info_icon_urls,
                             base::Bind(&BookmarkAppHelper::OnIconsDownloaded,
                                        base::Unretained(this))));
 }
 
 BookmarkAppHelper::~BookmarkAppHelper() {}
 
 void BookmarkAppHelper::Create(const CreateBookmarkAppCallback& callback) {
   callback_ = callback;
-  favicon_downloader_->Start();
+
+  if (favicon_downloader_.get())
+    favicon_downloader_->Start();
+  else
+    OnIconsDownloaded(true, std::map<GURL, std::vector<SkBitmap> >());
 }
 
 void BookmarkAppHelper::OnIconsDownloaded(
     bool success,
     const std::map<GURL, std::vector<SkBitmap> >& bitmaps) {
   // The tab has navigated away during the icon download. Cancel the bookmark
   // app creation.
   if (!success) {
     favicon_downloader_.reset();
     callback_.Run(NULL, web_app_info_);
@@ skipping 14 matching lines @@
              map_it->second.begin();
          bitmap_it != map_it->second.end();
          ++bitmap_it) {
       if (bitmap_it->empty() || bitmap_it->width() != bitmap_it->height())
         continue;
 
       downloaded_icons.push_back(*bitmap_it);
     }
   }
 
+  // Add all existing icons from WebApplicationInfo.
+  for (std::vector<WebApplicationInfo::IconInfo>::const_iterator it =
+           web_app_info_.icons.begin();
+       it != web_app_info_.icons.end();
+       ++it) {
+    const SkBitmap& icon = it->data;
+    if (!icon.drawsNothing() && icon.width() == icon.height())
+      downloaded_icons.push_back(icon);
+  }
+
+  web_app_info_.icons.clear();
+
   // If there are icons that don't match the accepted icon sizes, find the
   // closest bigger icon to the accepted sizes and resize the icon to it. An
   // icon will be resized and used for at most one size.
   std::map<int, SkBitmap> resized_bitmaps(
       ConstrainBitmapsToSizes(downloaded_icons, allowed_sizes));
 
   // Generate container icons from smaller icons.
   const int kIconSizesToGenerate[] = {extension_misc::EXTENSION_ICON_SMALL,
                                       extension_misc::EXTENSION_ICON_MEDIUM, };
   const std::set<int> generate_sizes(
@@ skipping 122 matching lines @@
       extension, info_list, base::Bind(&OnIconsLoaded, web_app_info, callback));
 }
 
 bool IsValidBookmarkAppUrl(const GURL& url) {
   URLPattern origin_only_pattern(Extension::kValidWebExtentSchemes);
   origin_only_pattern.SetMatchAllURLs(true);
   return url.is_valid() && origin_only_pattern.MatchesURL(url);
 }
 
 }  // namespace extensions